Water Filtration and Chlorination

Posted by Chris Tracey on 28 March, 2017

Water chlorination is carried out in most municipalities around the planet today, as a cheap and effective way to prevent the spread of disease. Overall, the effect is positive – our cities are crowded as never before in history, yet they are no longer swept by cholera, dysentery, and typhoid fever which killed millions of our ancestors.


In fact, the use of chlorine as a city water disinfectant leads to the question of whether it is necessary to filter your water at all in metropolises where it is present in the water supply. After all, someone might reason, if the utility company is putting chlorine in to make the water safe to drink, what more is needed to keep me safe?


To some degree, this is true. Chlorine does effectively kill a whole range of extremely nasty bacteria which would otherwise be very dangerous to anyone drinking the water. It does so thoroughly and reliably, making the water far safer than the drinking water available to humans through most of time. If you smell chlorine in the water, you know that you're not going to come down with cholera or any of the other deadly digestive bacteria mentioned above.


However, there is also a lot that chlorination can't do. Just because it kills a wide range of microorganisms doesn't mean that the water is completely clean after that. It can't actually remove anything from the water, such as chemicals or even particles of sand. All of these can degrade water quality, even if they are far less immediately hazardous than bacteria, so depending on local water conditions, a filter may still be needed.


  • Chemicals and volatile organic compounds (VOCs) are present in many water supplies, especially near industrial and manufacturing centers. Benzene, solvents, and petroleum products all find their way into water and can degrade health or raise the long-term risk of cancers. The same is true of herbicides, pesticides, and insecticides in farming regions. Carbon block filters or activated carbon media are usually used to absorb these chemicals.
  • Giardia and cryptosporidium are two protozoan parasites that can survive chlorination by hiding inside a cyst. When this cyst is swallowed, it opens and the parasite infects the intestines, quickly making more of its kind by splitting. These cysts need to be mechanically filtered out by a filter element that has an absolute pore size of 1 micron or less. The risk of Giardia varies from place to place, so some areas may not need this filter.
  • Arsenic can be an industrial byproduct, result from runoff from chicken farming (where it is used to give meat a pink tinge), or from natural deposits eroding into the water. A special arsenic filter, or a reverse osmosis filter (which removes just about everything from the water), is the answer to arsenic in the local water supply.
  • Sand, silt, and sediment are unaffected by chlorination and can make water cloudy, give it a noticeable color, or an unpleasant taste or odor (or any combination of the above).
  • The chlorine itself is rather unpleasant tasting and may be removed from drinking water with an appropriate filter. Other filters are used to catalyze it into chloride, removing it from shower water for healthier skin, hair, and lungs.

Multipure Undersink Water Filters

Posted by Chris Tracey on 21 March, 2017

Multipure Water FiltersPutting a filter underneath your sink leaves more countertop space and looks neater, and Multipure undersink water filters are built to provide exactly this type of filtration. Their stainless steel shell and dense block of solid carbon used as a cartridge make them rather heavy for their size at 5 pounds, but this is still light enough for easy installation. The most typical model, the Aquaversa, measures 9.4” by 6” and fits easily into most cabinets found beneath sinks.

Construction and assembly

Multipure undersink water filters are built with stainless steel casings, which have advantages in several areas – health, durability, and ecological considerations. Since stainless steel is fully recyclable, it is a more sustainable material than others. The day when recycling becomes necessary is likely to be far in the future, however, since it is resistant to breakage and all types of wear and tear. Stainless steel is resistant to corrosion and chemically neutral, so it will not affect your water other than perhaps a slight metallic taste while first breaking it in.

These filters mount to the interior wall of the cabinet under the sink, using a bracket. Some models also have converter kits enabling their use as countertop filters. There seems little reason not to buy a countertop filter in the first place if desired, but the potential to convert these filters into countertop variants adds to the product's flexibility.

There are two different choices in the way these Multipure undersink water filters can be configured. One type has a built-in designer faucet attached to it already. The owner mounts the filter right under the sink and sets up the faucet to jut up through the space provided for it. A chrome finish is the free default for this configuration, but you can also opt for bronze, brass, brushed nickel, brushed stainless steel, oil-rubbed bronze, almond, black, or white finishes at a slight extra cost.

The other configuration enables you to use the filter with your existing sink and faucet, with an in-line connector to link it to your tap. The filter can be mounted farther from the faucet this way, too, since a pipe or hose can be installed to link the two together. The input and output couplings are both the standard ¼” size used for most sink connections in the U.S>

Capabilities of the Multipure undersink water filters

Multipure undersink water filters contain a solid carbon block for filtration, which acts as both a mechanical and chemical filter. Mechanically, particles are sieved from the water as it passes through by sub-micron diameter gaps that allow the fluid through but snare rust, sand, silt, and microorganisms or parasites. Chemically, the carbon binds to many substances, effectively neutralizing them.

The filter functions properly anywhere between 30 and 100 pounds per square inch (psi) water pressure. Under 30 psi, the water can't push through the dense carbon and will slow to a trickle. Above 100 psi, the water will damage the filter cartridge and possibly shred it. At an ideal of 60 psi, Multipure undersink water filters provide a flow of ¾ gallon (0.75) per minute.

Under normal use, these undersink devices can filter up to 750 gallons before the cartridge is clogged and must be replaced. If you notice the water flow slowing down, this is probably a sign that the cartridge is about to give out. The cartridge is assumed to last about 1 year under regular use, but if you filter large amounts of water, it may well need replacement sooner.

A capacity monitor can be added to Multipure undersink water filters, giving you an LED display that shows when it's time to change the cartridge. The monitor also increases the effective life of each cartridge to 1,200 hours, making it well suited to people with high water needs. The monitor is yet another example of how Multipure tries to make customer options as flexible as possible with their water purification product line.

When Should I Replace Multipure Water Filter?

Posted by Chris Tracey on 07 March, 2017

Multipure recommends you change them 1 annually, 2 when the system reaches its rated capacity, 3 when the flow rate diminishes, or 4 when the filter becomes saturated with bad tastes and/or odors. To be covered under the lifetime guarantee you need to at least change the Multipure filters annually.


You might take the filter out and the prefilter around the filter is pristine, this does not mean the filter is still filtering properly as that is to collect sediment and if you do not have much the prefilter will look clean. So this is not an indicator that the filter is still absorbing contaminants in the carbon block beneath the prefilter , as the carbon will only absorb so much before it is exhausted.

Quality of Multipure Water Filters

Posted by Chris Tracey on 06 March, 2017

We hear from customers asking why are the Multipure water filters so exspensive?

                                                                                                                                                              Multipure Water FiltersWell it goes back to you get what you pay for, Multipure drinking water filters are made from    high quality products and are made in the USA. The housing on the Multipure water filters alsoo have a lifetime guarantee and you also get a 90 day no questions asked guarantee.  The Aquaversa, Aquadome and Aquaperform filters are NSF/ANSI certified to standards 42 for Aesthetic effects, 53 for Health Effects and the Aquaversa and Aquadome are tested to standard 401 for Incidental contaminants / Emerging Compounds. The reverse osmosis is tested to standards 58.

So  the Multipure water filters might be a little more expensive than other brands of water filters but as you can see they are made in the USA and are NSF certified to do what Multipure claims they do. They are also certified in the states of California, Iowa and Wisconsin. They will last you a lifetime if you take care of them and change the filters as needed or annually.

Can Drinking Water Help You Lose Weight?

Posted by Chris Tracey on 07 May, 2015

A glance at the internet will show anyone a virtual avalanche of diet books and weight loss plans. It’s certainly no secret that a sizeable percentage of Americans are overweight, if not downright obese, and most of these people would dearly love to get rid of those excess pounds. As it turns out, drinking water is actually a great way to accomplish this.

Most of us do not drink as much water as we should and tend to go through each day slightly dehydrated. While the connection between being thirsty and being hunger may not be too apparent, the two are easy to confuse and those in need of a glass of water will often reach for a donut or bag of potato chips instead.

Let Water Help Your Weight Loss Plan

Most diets fail after a brief flurry of weight loss. The reason for this is that many of them are so weird and restrictive that no one can stick with them for long. After all, how long can you stand eating several pounds of lettuce a day, garnished with a bit of bran? Not only are many of these diets nutrient poor, but some will interfere with the functioning of important organs such as the liver or kidneys – how much simpler, and safer, to let water help you to lose weight. There are a number of ways in which water can help peel off those excess pounds.

  • A glass of water before a meal will fill you up so you will eat less.
  • Cold water speeds up your metabolism. When you drink cold water, your body responds by working harder to warm it up; a metabolism that is working harder will burn more calories than a sluggish one.
  • Water helps flush cholesterol out of your body.
  • In order for your digestive system to function properly, it needs an adequate amount of water. If you don’t drink enough, the system becomes sluggish and food remains in the stomach and intestines much longer than it should.
  • One of our most important organs, the liver, processes fat. However, the liver needs water in order to do this properly; drinking plenty of water will help your liver get the fat moving out of you as it should.
  • Oddly enough, when you fail to drink enough water, your body will actually hold onto what is in the system already. This can cause bloating and fluid retention, which will make you seem heavier than you really are.
  • Water helps to remove toxins and other harmful elements from the body that can interfere with normal metabolic processes.

Pure Water Is Best for Weight Loss

Although it’s obvious that drinking plenty of water can have a huge, positive impact on helping with weight loss, it’s equally important that you drink the right kind of water. Most water, that which comes from a municipal water supply or from a well, will contain some kind of pollutants such as:

  • Chlorine
  • Fluoride
  • Heavy metals
  • PCBs
  • Industrial or agricultural runoff

While the water in your glass may appear to be completely clear and, except in the case of chlorinated water, have an acceptable taste, these ‘additives’ can also have a negative impact on attempts at weight loss. Accumulation of these contaminants in drinking water can disrupt the normal functioning of the kidneys and liver, which will impact the ability of the body to remove toxins and process fats and other nutrients.

Fortunately, it’s possible and easy to drink water that will be pure and clean. Water filters and purifiers are the answer to water that may be interfering with your ability to lose weight. Whether you rely on water filter bottles, a countertop or undersink water filter or a whole house filtration system, filtered water will provide you with a refreshing drink that will help your body function normally and assist with your weight loss plan.

Multipure Countertop Water Filters

Posted by Chris Tracey on 08 April, 2015

Ease of installation and removal is one of the big advantages of Multipure countertop water filters – which can be readily swapped between sinks, put away when not needed, and so on. Of course, the tradeoff is that they are out in the open, possibly making your kitchen look a bit more cluttered and occupying some of your (perhaps limited) counter space. These factors must be weighed against each other when deciding between the countertop and the undersink options. 

Currently, the company offers two different filters for this role. The Aquaversa is stainless steel model that is designed to work as a countertop unit straight out of the box, yet can be easily adapted to undersink use by buying and using a special kit. The ability to switch back and forth between countertop and undersink, in-line functionality might be useful to some people, and lets you test out which works better for you if you are uncertain which is more suited to your needs. 

The Aqua-Dome is plastic, unlike most of Multipure's countertop water filters. The white plastic has a cheerful, mild look, a bit less “serious” than the stainless steel of the Aquaversa. This device is also lighter weight, though it cannot be used for undersink filtration.


The Multipure Aquaversa Countertop Water Filter











The Aquaversa is a sturdy stainless steel cylinder filter in the tradition of other Multipure countertop water filters. It measures 9.4” tall and 6” in diameter, and weighs five pounds. As usual, it can be fitted to any standard faucet without the need for tools, though it may not work with some unusual faucets, such as extending types. 

The Multipure Aquaversa MP750SC countertop filter uses a hose and diverter valve when it is stationed on the countertop. This valve allows you to preserve the filter when it isn't needed, by switching over to unfiltered water. The cartridge's life is extended by only switching over to filtered water when it is required for safe drinking or cooking. 

This filter is not a “one-note” product, however. It is also designed to be used as an undersink fixture at your option. In this case, there are two ¼” pipe couplings where the input and output pipes or hoses can be attached. And, a mounting bracket enables it to be screwed onto the interior wall of the cabinet securely, keeping it out of harm's way. Alternately, you can just rest it on the cabinet's floor so that you can quickly switch back to using it as a countertop model. 

The filter comes with a designer faucet, too, which can optionally be used in place of your own hardware. The basic color is chrome, but other tints are also supplied as an option. 

The Aquaversa's technical characteristics and performance are quite respectable. Cartridges can each filter a total of 750 gallons – approximately one year's worth of filtered water at average rates of consumption – before they must be replaced. This rises to 1,200 gallons with the use of a capacity monitor kit (sold separately). Output is 0.75 gallons per minute at 60 psi, with the usual 30 psi to 100 psi operating range for Multipure countertop water filters. 


The Multipure Aqua-Dome Water Filter


The Multipure Aqua-Dome (MPAD) is an unusual specimen among Multipure countertop water filters, made out of white polypropylene plastic rather than stainless steel. It is lightweight at 2.9 pounds, and stands 9.5” high on its flared 5.15” base. Though the housing isn't metal, it still includes a lifetime warranty. The diverter valve that links it to your faucet is made of chrome-plated brass for extra durability, while the tubing is PVC. 

This is a good standard filter that reduces down to half-micron size, plus the usual lineup up chemicals, microorganisms, and carcinogens. It can handle up to 750 gallons before replacement is made and puts out ¾ of a gallon every minute at 60 psi. This is a fine example of Multipure countertop water filters and fulfills its function with aplomb while exuding a cleanly modern aesthetic. 

Is Breast Milk Safe for Babies?

Posted by Chris Tracey on 31 March, 2015

Baby Breast FeedingPrevious to several decades ago, most babies were fed formula with a bottle. This was thought to be a more ‘modern’ approach to infant nutrition. However, as a greater understanding of the many beneficial qualities of human milk became known, more and more new mothers started nursing their babies.

Not only is human milk perfectly balanced to provide everything an infant needs in the first few months of life, but it is also designed to promote rapid growth of the brain, rather than fast muscle and body growth needed by animals that must move around on their own quickly. Now, some concerns have arisen over the pollutants that may be present in human breast milk.

Although pesticides are more carefully controlled now than they were in the past, many of them, as well as some chemicals used in manufacturing, are still lingering in the environment decades after the last drop of poison was squeezed out onto a plant. These are called POPs or persistent organic pollutants. DDT was banned in the United States in 1972, it is still detectable not only in breast milk, but in animals throughout the spectrum. All of us, regardless of where we live, probably have some DDT in our fat tissue.

While the mother’s body will filter out most of the fluoride or chlorine that may be in your drinking water, other negative elements can pass through to the infant. Heavy metals, pesticides, and other pollutants can be ingested by the baby from breast milk.

No one can do much about any residues in the body from environmental chemicals, but it is fairly easy to make sure that the baby will be much less likely to be exposed to contaminants if the mother drinks purified water.

Is Formula the Answer?

Some have thought that using infant formula, either ready-made or mix, will solve the problem of breast milk contamination. Always bear in mind that formula will not provide the antibodies that are needed to build up the new immune system of the baby and that there is no way to mirror the actual composition of human milk.

Consider, too, that the soybeans used to prepare many of these formulas were grown using artificial fertilizers and pesticides. In addition to soy products, dry milk is also used. Cows are subject to the same kind of environmental pollution that the rest of us are, and arsenic and heavy metals are just as likely to be present in bovine milk as they are in human. So, no, formula is not the answer.

Making Milk as Safe as Possible

Although the past cannot be changed, there are still effective ways of making sure that no further contaminants will enter the mother’s body through the household water supply. Water filters and purification units are the answer for providing safe, clean water for a nursing mother, and hence for the baby. Even the simplest of these filters will remove most organic and inorganic pollutants. Heavy metals will be ‘captured’ so that they cannot be passed on through breast milk to the infant.

Probably the simplest approach to pure water for the mother to drink is by using a coutertop filter. These units attach directly to the faucet and sit on your counter.  You could also purchase an undersink filter such as the Multipure Aquaversa MP750SB Undersink Filter so it is hidden under your counter and has its own faucet. If you are worried not only about the usual problems, but also about fluoride, the Multipure reverse osmosis systems will also reduce fluoride. Or you can purchase fluoride filters from our sister site Quality Water Filters 4 You.

As chlorine can be absorbed through the skin and also inhaled as a gas, maximum protection for mother and child can be provided by a whole house filter. These units will use a complex series of filter media to reduce a wide range of contaminants to help ensure nursing mothers will be able to provide safe milk.

Multipure Water Filters and Giardia

Posted by Chris Tracey on 23 March, 2015

Giardiasis, known by the amusingly lyrical name of “beaver fever”, is an infection caused by tiny animals known as protozoans. Giardia protozoans attach themselves to the wall of the mammalian intestine in dense thickets, holding on with a sucker disk on their rear surface. They absorb nutrients here and cause such symptoms as diarrhea, bloating, nausea, vomiting, and other non-fatal but unpleasant digestive problems.

The infection will pass in time even without treatment, though getting rid of it as soon as possible is the best route to take both for the patient's own comfort and for the safety of those who might otherwise be infected by protozoans shed by the infected person.

Giardia organisms themselves are fairly fragile and, in their normal state, will die rapidly outside a host. However, they can encase themselves in a cyst to travel passively from host to host. This cyst allows the enclosed organism to survive for anywhere for several weeks to several months, depending on the water temperature and other factors.

These cysts are particles of a regular size, and therefore can be removed easily by any filter with an absolute pore size of 1 micron or less. Chlorination is no protection from Giardia because the cyst armors the occupant from many environmental effects, including most chemicals. The sole certain way to remove cysts is the straightforward one of mechanically filtering them out.

The Irony of “Beaver Fever”

 For many years, it was believed that Giardia originated with beavers and muskrats – a logical connection, to be sure, since many of these large rodents are infected, and live in the water besides. Ironically, however, it appears that beavers are actually innocent of causing Giardia, and humans are the actual disease vectors, while muskrats and beavers pick the ailment up from contact with humans.

Beavers and muskrats who live in remote areas where human feces are absent from the water have been conclusively shown to be free of Giardia infection. Furthermore, even in generally sewage-polluted waters, those animals who live downstream of the sewage source (a campground, a town, etc.) are far more likely to be infested with the parasites than those upstream from it. 

Of course, beaver ponds form a “sink” that traps particulate matter like Giardia cysts and infected human feces, so swimming in or drinking the water from them is riskier than open, flowing water. 

The presence of beavers or muskrats is therefore not a sure sign of Giardia in the water. Rather, the presence of humans and their waste products in the water are what present an actual risk of giardiasis. However, beavers and muskrats do serve as a “marker” – if the local beaver and muskrat populations are known to be infected with Giardia, then that is a sure sign that infected humans are regularly defecating in the water supply, and proper filtration should be used such as Multipure water filters that are NSF tested.

Dealing with Bad-Tasting Water

Posted by Chris Tracey on 19 March, 2015

Bad tasting waterIs Your Tap Water Making You Gag?


Even if you received chlorinated water from a city or town water supply, the water can sometimes have a foul taste to it. Although many people object to the taste and smell of chlorine, and other contaminants can also make your water unpalatable. Bad-tasting water can also be found in well water in rural areas.

Even if what is causing the bad taste is essentially harmless and will not cause illness, drinking and cooking with water that has an off flavor is still undesirable. There are a number of things that can result in bad-tasting water:

  • A metallic flavor can be imparted from iron water pipes, especially if the water has been stationary in the pipes for a long period of time, even overnight.
  • Algal blooms during the summer can affect the water in reservoirs that serve municipal water systems. The residue from these blooms will impart a musty, mildew taste to the water.
  • Hydrogen sulfide can make your water smell and taste like rotten eggs. Some hydrogen sulfide is naturally occurring and will simply seep into your water supply, but bacteria in drains can also be the cause.
  • If your water has a soapy taste to it, or smells like soap or detergent, you may be getting seepage from your septic tank into your drinking water supply. Cracks in the water intake pipe can allow contaminants to enter your drinking water.

In some cases, such as the problems caused by algal blooms, the condition will rectify itself when the weather becomes colder and the algae die back for the year. However, the other sources of the bad taste mean that you will have to take steps to freshen your water supply.

Water Filters to the Rescue

The best way to deal with bad-tasting water is to use a water filter to remove the foul taste. There are a number of options that can help you and your family to enjoy your water.

  • Pitcher filters are an inexpensive solution to bad-tasting water as long as there is no bacterial or chemical pollution, and they are generally designed just to get rid of bad tastes, including chlorine and take a while to filter water through.
  • Countertop, gravity feed filters are designed to remove not only bad tastes, but also nearly every possible contaminant from your water. They deliver excellent tasting, pure water for years before the filtering elements need replacing, although the candles should be cleaned off every month or so.
  • Under the sink filters like the Multipure Aquaversa MP750SB are another way to get rid of bad taste and reduce contaminants, and they also help to keep your counter space uncluttered.
  • Filters that attach right to the faucet are convenient to use, but are limited to what they will filter.
  • Whole house filters such as the Multipure Aquasource will eliminate foul smelling water and reduce a wide range of contaminants throughout the home. These filters will not only allow you to drink and cook with clean water, but will allow for care free bathing and showering.

Whatever water filter system you purchase make sure it will filter what the manufacturer claims it will and it is a good quality filter system as it is a big investment. Multipure water filter are certified to NSF standards 42 for aesthetics and 53 for health effects and 58 for Multipure’s Aquacomplete reverse osmosis system.

Multipure also have a 90 day satisfaction guarantee and a lifetime warranty on the filter housings.